Goodwill and Other Intangible Assets, net (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of changes in the carrying amount of goodwill

The changes in the carrying amount of goodwill, net by segment follows:

(in millions)	CCM		CIT		CFT		CBF(1)		Total
Balance as of December 31, 2019	$	597.1	$	835.2	$	187.5	$	96.5	$	1,716.3
Goodwill acquired during year(2)	12.5		2.8		2.8		—		18.1
Measurement period adjustments(3)	—		(6.8)		—		—		(6.8)
Currency translation and other	1.3		(1.9)		0.3		—		(0.3)
Balance as of September 30, 2020	$	610.9	$	829.3	$	190.6	$	96.5	$	1,727.3

⁽¹⁾CBF goodwill, net is presented net of accumulated impairment losses of $130.0 million recorded in 2016. No other segments have incurred impairment losses.

⁽²⁾The Company acquired two businesses for an aggregate purchase price of $36.5 million during the first nine months of 2020.

⁽³⁾Refer to Note 4 for further information on goodwill resulting from recent acquisitions.

Summary of other intangible assets, net

A summary of the Company's other intangible assets, net follows:

	September 30, 2020						December 31, 2019
(in millions)	Acquired Cost		Accumulated Amortization		Net Book Value		Acquired Cost		Accumulated Amortization		Net Book Value
Assets subject to amortization:
Customer relationships	$	1,054.5	$	(414.2)	$	640.3	$	1,054.4	$	(354.9)	$	699.5
Technology and intellectual property	309.3		(197.6)		111.7		304.1		(167.0)		137.1
Trade names and other	115.0		(46.8)		68.2		100.0		(38.7)		61.3
Assets not subject to amortization:
Trade names	243.6		—		243.6		242.7		—		242.7
Other intangible assets, net	$	1,722.4	$	(658.6)	$	1,063.8	$	1,701.2	$	(560.6)	$	1,140.6

Summary of the net book values of other intangible assets, net by reportable segment

The net book values of other intangible assets, net by reportable segment follows:

(in millions)	September 30, 2020		December 31, 2019
Carlisle Construction Materials	$	310.8	$	345.3
Carlisle Interconnect Technologies	402.9		441.0
Carlisle Fluid Technologies	262.4		272.8
Carlisle Brake & Friction	75.5		80.2
Corporate	12.2		1.3
Total	$	1,063.8	$	1,140.6